To hell with the truth! As the history of the world proves, the truth has no bearing on anything. It's irrelevant and immaterial, as the lawyers say. The lie of a pipe dream is what gives life to the whole misbegotten mad lot of us, drunk or sober.
If someone were to hire me for a film they'd be getting a certain kind of package, that's for sure, a certain set of tools. But I would listen to the director.